Publications associées à Nitrogen reduction and functionalization by a multimetallic uranium nitride complex

Dative boron–nitrogen bonds in structural supramolecular chemistry: multicomponent assembly of prismatic organic cages

Rosario Scopelliti, Kay Severin, Kurt Schenk, Erin Sheepwash, Burçak Içli

The multicomponent reaction of diboronic acids with a catechol and a tripyridyl linker results in the formation trigonal prismatic cages. The cages feature six dative boron–nitrogen bonds as structure-directing elements. The size of the cages can be varied ...

2011

Modulation of the unpaired spin localization in Pentavalent Uranyl Complexes

Marinella Mazzanti

The electronic structure of various complexes of pentavalent uranyl species, namely UO2 +, is described, using DFT methods, with the aim of understanding how the structure of the ligands may influence the localisation of the unpaired 5f electron of uranium ...

2010

Coupled Biogeochemical Processes for the Reduction and Immobilization of Uranium

Harish Veeramani

The substantial decrease in solubility accompanying the reduction of U(VI) to U(IV), producing the sparingly soluble mineral uraninite, is viewed as a potential mechanism for the sequestration of environmental uranium contamination. In recent years, a vari ...

EPFL2010

Ammonia oxidation to nitrogen mediated by electrogenerated active chlorine on Ti/PtOx-IrO2

Christos Comninellis, Agnieszka Kapalka, Nina-Luisa Michels

The electrochemical oxidation of ammonia (NH3 and/or NH4+) in the presence of chloride was investigated on a Ti/PtOx-IrO2 electrode. It was shown that ammonia is effectively removed from solution via electrogenerated active chlorine. Based on mass balances ...

Elsevier2010

Enhanced ammonia oxidation on BDD induced by inhibition of oxygen evolution reaction

Christos Comninellis, Agnieszka Kapalka, Nina-Luisa Michels

Electrochemical oxidation of ammonia (NH3 and NH4+) on boron-doped diamond (BDD) electrode was studied using differential electrochemical mass-spectrometry (DEMS) and chronoamperometry. Electro-oxidation of ammonia induces inhibition of the oxygen evolutio ...

Elsevier2010

Ultrafast spectroscopy of the uranium(IV) and thorium(IV) bis(ketimide) complexes (C5Me5)(2)An[-N=C(Ph)(CH2Ph)](2) (An = th, U)

Verner Thorsmolle

Ultrafast pump-probe spectroscopic studies have been performed on (C5Me5)(2)U-N=C(Ph)(CH2Ph) and (C5Me5)(2)Th-N=C(Ph)(CH2Ph) including, for the uranium complex, the first direct measurement of dynamics of electronic deactivation within a 5f-elect ...

American Chemical Society2008

Physicochemical Properties and Theoretical Modeling of Actinide Complexes with a para-tert-Butylcalix[6]arene Bearing Phosphinoyl Pendants. Extraction Capability of the Calixarene toward f Elements

Jean-Claude Bünzli

The coordination ability of the hexaphosphinoylated p-tert-butylcalix[6]arene

B_6bL^6

toward actinides is established, as well as its good separation ability of the actinide ions

UO_2 ^{2+}

and Th(IV) over trivalent rare earths such as La(III), Eu(III) ...

2008

Influence of Dissolved Sodium and Cesium on Uranyl Oxide Hydrate Solubility

Janet Gordon Hering

The solubility of uranium-containing minerals can control the mobility of uranium in contaminated soil and groundwater. The identity and solubility of these minerals are strongly influenced by solution composition. The influence of dissolved sodium and ces ...

2004

Synthesis and Characterization of N-Heterocyclic Carbene Complexes of Uranium(III)

Xile Hu

Reaction of [((AdArO)3tacn)UIII] (1) or [((Me3Si)2N)3UIII] (3) with tetramethylimidazol-2-ylidene (Me4IMC:) yields novel N-heterocyclic carbene complexes [((AdArO)3tacn)UIII(Me4IMC:)] (2) and [((Me3Si)2N)3UIII(Me4IMC:)] (4). Uranium complexes 2 and 4 repre ...

2004

Standardisation des outils de calcul pour les ADS et leur application à différents scénarios de transmutation des déchets

Marco Cometto

The management of radioactive wastes from the nuclear fuel cycle has become an important issue in the development of future, more sustainable nuclear energy systems. Partitioning and transmutation (P&T) of actinides and some long-lived fission products cou ...

EPFL2003

Nitrogen reduction and functionalization by a multimetallic uranium nitride complex

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Dative boron–nitrogen bonds in structural supramolecular chemistry: multicomponent assembly of prismatic organic cages

Modulation of the unpaired spin localization in Pentavalent Uranyl Complexes

Coupled Biogeochemical Processes for the Reduction and Immobilization of Uranium

Ammonia oxidation to nitrogen mediated by electrogenerated active chlorine on Ti/PtOx-IrO2

Enhanced ammonia oxidation on BDD induced by inhibition of oxygen evolution reaction

Ultrafast spectroscopy of the uranium(IV) and thorium(IV) bis(ketimide) complexes (C5Me5)(2)An[-N=C(Ph)(CH2Ph)](2) (An = th, U)

Physicochemical Properties and Theoretical Modeling of Actinide Complexes with a para-tert-Butylcalix[6]arene Bearing Phosphinoyl Pendants. Extraction Capability of the Calixarene toward f Elements

Influence of Dissolved Sodium and Cesium on Uranyl Oxide Hydrate Solubility

Synthesis and Characterization of N-Heterocyclic Carbene Complexes of Uranium(III)

Standardisation des outils de calcul pour les ADS et leur application à différents scénarios de transmutation des déchets

Ammonia oxidation to nitrogen mediated by electrogenerated active chlorine on Ti/PtOx-IrO2

Enhanced ammonia oxidation on BDD induced by inhibition of oxygen evolution reaction

Dative boron–nitrogen bonds in structural supramolecular chemistry: multicomponent assembly of prismatic organic cages

Physicochemical Properties and Theoretical Modeling of Actinide Complexes with a para-tert-Butylcalix[6]arene Bearing Phosphinoyl Pendants. Extraction Capability of the Calixarene toward f Elements

Modulation of the unpaired spin localization in Pentavalent Uranyl Complexes

Coupled Biogeochemical Processes for the Reduction and Immobilization of Uranium

Ultrafast spectroscopy of the uranium(IV) and thorium(IV) bis(ketimide) complexes (C5Me5)(2)An[-N=C(Ph)(CH2Ph)](2) (An = th, U)

Standardisation des outils de calcul pour les ADS et leur application à différents scénarios de transmutation des déchets

Influence of Dissolved Sodium and Cesium on Uranyl Oxide Hydrate Solubility

Synthesis and Characterization of N-Heterocyclic Carbene Complexes of Uranium(III)